Bucket.



H. S. ATKINSON.

BUCKET.

APPLICATION FILED JUNE 6, l9l2.

Patented Dec. 10, 1918.

3 SHEETS-SHEET I.

In: luau tmls w mmunm. Imam". n.

H. S. ATKINSON.

BUCKET.

APPLICATION FILED JUNE'G. 1912.

Patented Dec. 10, 1918.

3 SHEETS-SHEET 2.

H. S. ATKINSON.

BUCKET. APPLICATION nun JUNE 6. 1912.

1,286,905. Patented Dec. 10, 1918.

3 SHEETSSHEET 3.

nrrnn STATES PATEN 1 onnron.

HERBERT S. ATKINSON, OF EAST ORANGE, NEW J ERS EY, ASSIGNOR TO THE HAYWARD COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

BUCKET.

Specification of Letters Patent.

Application filed June 6, 1912. Serial No. 701,993.

To all whom it may concern.

Be it known that I, HERBERT S. ATKINSON, a citizen of the United States, and a resident of East Orange, in the countyof Essex and State of New Jersey, have invented certain new and useful Improvements in Buckets, of which the following is a full, clear, and exact specification, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention is more especially adapted to sheave operated buckets, wherein the bucket is provided with a rope reeve to effect the opening and closing movements of the bucket. One of such buckets is shown and described in an application for patent filed by John H. Hayward and myself as co-inventors, under date of March 2nd, 1912, Serial No. 681,197, the bucket segments being closed by hauling in on the opening-andclosing rope and being opened by gravity on slackening off said rope.

The object of my invention is to provide, for such buckets, means for supporting the sheaves in the lower center thereof, in such a manner that the sheaves may be readily removed and new ones substituted without dismantling the bucket.

A further object of my invention is to provide convenient and ready means for adding rope-overhauling power to the lower center of the bucket.

A further object of my invention is to provide a casing for the sheaves in the lower center of the bucket, of such construction that the part thereof which supports the I sheaves may be, removed and other and heavier parts substituted, from time to time, as the occasion may require.

These objects will be made clear by the following description in connection with the accompanying drawings, in which,-

Figure 1 is a side elevation of a sheave operated bucket, in which my improvements are embodied;

Fig. 2 is a plan View of the sheave casing in the lower center of the bucket with the sheaves removed;

Fig. 3 is an end view of the casing with a removable part including the sheaves dropped out of operating position;

Fig. A is a plan view of the removable part shown in Fig. 3;

Fig. 5 is an end view of the parts in assembled or working position;

Fig. (dis a section on line 6-6 of Fig. 5, partly in elevation; and

Fig. 7 is a similar view showing a modification of the fastening means.

Referring to the construction illustrated,

10 represents in its entirety, a sheave ope'rated bucket, wherein 11 indicates a sheave casing, pivotally mounted at the upper center of the bucket, the upper portion 12 of'which casing contains a sheave 13 forthe holding line 14:. Pivotally suspended from the casing 11, at each side thereof, are a pair ofzconnecting rods 15, 16 (two at one side only being shown) which, at their lower ends, are pivotally connected to the bowl or blade sections 17, 1 8.

Each of the bowl sections 17 18 has rigidly connected thereto, side arms 19, 20,

. one at each side of each bowl section, (two only being shown). These side arms are in turn pivotally connected to a sheave casing 21 in the lower center of the bucket.

Within the lower portion 22 of the upper sheave casing 11 are mounted, side by side, a plurality of sheaves, one of which is indicated in dotted lines at 22*, (Fig. 1), the opening and closing rope 23, for raising and lowering the casing 21, and consequently opening and closing the bowl sections 17 18,

passing through a rope thimble indicated at 24, and around the sheaves in the casing 21 and sheaves 22 of the casing 11, and up through a rope thimble 25, at the opposite side of the casing 11.

The subject-matter of the present inven tion is the improvement in the casing 21, the other features above referred to being illustrated and described for the purpose of showing the application and use of my invention to, and in connection with, a bucket of the class shown. I

The sheave casing 21 is supported upon the bowl sidearm pins 26,27 upon which latter the bowl side arms 19, 20 are also pivotally mounted.

Said casing 21 comprises a permanent housing member represented in whole at 28 and a removable housing member represented, in whole, at 29. (See Fig.

The housing member 28 consists of a bridge-like casting, having a box-shaped middle portion, comprising the side members 30 and end members 31, from which side members 30 extend, at right angles thereto, horizontal flanges 31"", which flanges are provided with enlarged portions or] bosses 32, which are annular in form and are bored horizontally to a sufiicient depth, as indicated at 33, toreceive the ends of the bowl side arm pins 26, 27, the bosses and pins be ing held together by bolts 34, 35. The bosses 32 are also provided with semi-annular grooves 33, to be hereinafter referred to.

The housing member 28, is-also provided with diagonally disposed reinforcing ribs 36. The side and end members 30, 31 are spaced apart to form acentral recess for the sheaves to be hereinafter referred to.

The removable housing member 29 comprises a semi-annular shaped casting 37, having the side walls 37 and the end Walls 37, said casting 37 being formed, at each side, at the upper middle portion thereof, with a boss or hub member 38, from each of which hub members 38 projects laterally, at each side thereof,-a lug 39, said lugs being apertured at 39*. Each of the hub members '38 is formed with a half-round roove 40' extending entirely through the slde walls 37, within which grooves rests the sheave pin 41. Said sheave pin 41 passes through the several sheaves indicated at 4:2 and in operation bears upon the walls of said grooves 40 and of the grooves 33 of the bosses 32, which. form a divided or split bearing therefor. The inner wall of the removable member 29. is provided With a plurality of projections 43, which areslightly a strong support for the sheave pin and sheaves, and when it is desired to remove one or more ofthe sheavesfor the substitution of new ones,-or when it 1s desired to add weight to the casing to give it greater quirement is that :the sheave casing shall vhave additional weight, the sheaves and sheave .pin may be removed as above mentioned and placed in a more heavily weighted housing and the same returned into operative iposition in the housing member 28, all by a substantially momentary operation.

In Fig, 7 is shown a modification of the means for securing together the two housing members of the casing, which comprises a rearward extension 50 of the boss or hub members 38, at the end of which and at the rear end of the flange members 31 is provided a hinge 5l, the front ends of the housing members being secured together by the bolt 39, as described in the preceding part of this specification. In this modified construction, when it is desired to remove one or more sheaves from the casing, it will simply be necessary to remove the bolt 39 when one end of the housing member 29 may be dropped, said member being held in suspended position by the hinge 51, thus affording ready and convenient access to all the parts.

I desire it to be understood that I do not confine myself to the precise details of construction and arrangement of the invention herein set forth, as modifications and variations may be made without departing from the spirit ofthe invention, as defined by the appended claims.

-What I claim is:

1. A sheave casing for hoisting buckets comprising a permanent housing member and a second housing member vertically movable relative thereto, the contacting faces of said members being grooved to form divided bearings for a sheave supporting pin, a sheave pin in said bearings, sheaves loosely carried thereby, means for dependently securing one of said members to the other, and means whereby the permanent housing mem ber may be pivotally secured to the bowl sections of a bucket.

2. In a bucket, the combination with a sup.- porting head, of a plurality of bowl sections and a sheave casing comprising a housing member pivotally connected to said bowl sections and a second housing member movably secured to the first named member, the faces of said members being grooved to form bearings for a sheave-supporting pin.

3. In a sheave operated bucket, the combination with a plurality of bowl sections, of a sheave casing, comprising a plurality of sheave housing members, means for pivotally securing one of said members to the bowlsections, means for detachably securing the other of said members to said first named member, said members being grooved to form bearing surfaces for a sheave pin, a sheave pin in said grooves and sheaves on said pin.

4. In a bucket, the combination with a supporting head, of a plurality of bowl sections, and a sheave casing pivotally secured to said bowl sections, said casing comprising a plurality of housing members provided with grooved faces oppositely disposed, a

sheave pin havingits bearings in the grooves of said members, sheaves on said pin, and means for securing one of said housing members to the other in movable relation thereto, whereby said sheaves and pin may be removed from said casing without removing from the bucket said other member.

5. In a sheave operated bucket, the combination with a plurality of bowl sections, of a sheave casing comprising a sheave housing member pivotally secured to said bowl sections and centrally recessed to receive the upper portion of a set of sheaves and provided with a segmental groove to receive the upper portion of a sheave pin, a second sheave housing member centrally recessed to receive the lower portion of a set of sheaves and provlded wlth a segmental groove to receive the lower portion of said sheave pin, sheaves carried by said p111, and means for detachably securing said housing members 20 together in operative position.

HERBERT S. ATKINSON.

Witnesses:

LAURA E. SMITH, E. S. MACDONALD.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0. 

